Mantle head



May 2, -W B ENGH MANTLE HEAD Filed March l0, 1931 2 Sheets-Shree?l 1 May 2, 1933- w. B. ENGH 1,906,255

MANTLE HEAD Filed March 10, 1931 2 Sheets-Sheet 2 Patented May 2, 1933 um'ranl STATES imaxes Partnr oFF-ICE? WALTER B. ENGH, or cHroAso, ILLInoIs, AssrGNon fro Transmit-erna naar? coiurAiaY or AMERICA, or carrosse, rumors, A conroaafrron or ILM-Nels .y 1

MANTLE HEAD The invention-relates to headsfor incandescent mantles and it especially relates to inverted mantles such as are used with pres sure type hydrocarbon lanterns having blue'- .Y 5 flame burners.V Y

y The invention includes a metal head which is of such shape as to properly sustain the mantle, and also enable a flame applied to the combustible and thorium-impregnated 10 fabric of the mantle to easily burn out that part of the fabric which is attached to the mantle head, whereby the fusing of `vthe Y thorium content at the mantle head is greatly facilitated and the top ofthe mantle strengthened.

`One embodiment of the invention comprehends a mantle head for inverted mantles of the so-called rag type, such as are used with hydrocarbon lanterns, the mantle head being of such form that the mantle may be supported in spaced relation to the burner head, whereby a minimum conduction of heat is permitted fromthe mantlevhead to the burner.

VThe invention involves other and useful details of construction, hereinafter tobe disclosed. y

Referring to the drawings, constituting a part of this invention,

`Figure l showsinelevation a vburner, a

mantle 'and a 'mantle head embodying the invention; Y Y

Figure 2vis a sectional view taken `on the line-Q2 of Figure l;V 'i p i Y Figure 3 isa plan view of the embodiment of the invention' shown in Figure l; Figure 4 shows, in side elevation, the mantle head before the mantle is applied theret0; -V I Figure 5 shows, in elevatiomthe lower end Y ofthe burner towhich the be, attached;

` Figure 6, shows, in elevation, an uprightmantle attached 'toits support, and a second embodiment of a mantle head embodyinga modified formof theinvent-ion; Y i

Figure 7 is a plan view of the mantle shown in Figure 6;

Figure 8 is a. plan view of the mantle head mounted 5,9 Shawn in the maute ef Figure 6; and

manner.. mantle head may 'be seated. .bent te term, inwardly-@ateliers 1Q0PS 16199 Figure 9 shows,.in side elevation, the modi- `fiedrform ofthe mantle head before themantle is applied thereto.

In the making of incandescent mantles,

,either of the Vinverted type shown in'Figure l or of the upright type shown 1n Figure G, one of thedifculties to be overcome' is the production of a mantle having a top por.- tion of sufficient strength and symmetry. In both the'upright and the inverted mantle, the means by which the mantlefis secured to the head thereof is customarily fashioned by folding over the upper edge ofthe im pregnated fabric from which the. mantler'is formed, by shirring or gathering in the4 folded edge of the fabric by a cord. When the mantle is calcinedand formed either -on'the burner with which it is to be used, or in the factory, itis difficult to burn out that part of the mantle fabric which is hunched together at the top ofthe mantle, and, as a consequence, it is difficult to produce mantle heads of the desired strength. y

This invention involves a metal mantle headmade of wire of any desired cross-sectional shape, that is so formedk as to provide a. suitable support Afor amantle and, at the same time, employ a minimum amount of metal. Furthermore, it becomespossible to Vattach a mantle top to the groove of the mansmall amount of impregnated vmantle fabric is required to produce a mantle head.

The minimum amount of fabric thus used andthe openness of the metal yhead construction,A make it easyv to thoroughly burn out and harden the head Vof a mantle produced in this One embodiment of the mantle i cludes a preferably continuous-.bent wire,

having laterally-extending spaced .loops'l- V' and downwardly-extending and outwardlyinclinedk spaced loops 2', which togetherprovide what is in effect a groove or 'seat 3, withe yin which the upper edge ofthe impregnated mantle fabric and its retaining cord -5 may Said wire, furthermore, may be shown in Figure 3, and the ends thereof spotwelded. The loops, preferably three in number, may interlock with bayonet sockets 7 of the burner head 8 to thereby secure a completed mantle in operative posit-ion to the burner.V These inwardly-extending loops G are, preferably, of such length as to leave a space 9 between the burner head and the mantle head, through Which space and the spaces between the loops l and 2, the flame or hot products of combustion from the burner may pass, kthus facilitating the burning out of the fabric of the mantle that is in contact With the metal head, as Well as the` voffa cmnplctcd mantle to a high temperature,

the thorium fabric of thev mantle at t-he top of themantle, when thus highly heated, becomingl incandescent so that all areas thereof are rendered luminous.v

1 The mantle head disclosed'in this application is especially useful as a support for soft or rag mantl-es of the type commonly used for' hydrocarbon llanterns Where the user attaches the mantle to the hea-d of the burner and burns out the fabric and hardens the mantle on the burner of the lantern Where it is to be used. Heretofore, rag mantles have commonly been tied direct-.ly to the burner head by the user, 'and in such cases it is impossible to hea-t that part of the mantle in contact With the burner head to a sailiciently high tempera-ture whereby the mantle may be calcined and the thorium therein contained? fused and strengtliened. ln such cases, the fabric of the mantle at the point of contact with the burner is soft and the mantle is' consequently' easily broken away lfrom the-burner head. y This invention com-prehends the making of a. metal mantle'head support, preferably of nickel and also preferably of Wire, so, that a minimum amount of nickel is used;v andV it' also comprehends mea-ns for supporting the head of the mantle in spaced relation to the burner, so that the flaineand the lhot products of combustion Will pass both inside and outside ofthe head, Whe-reby'the mantle head will be highly heatechand, because of the limited metallic or heat-conductive relation between the mantle head and the burner, this heat will be r-etained. v

The second vembodiment of the invention, shownin Figures 6, 7, 8 and 9, involves a lform of the invention suitable for supporting an upright mantle `which may be formed in the factory. In this embodiment, the mantle head possesses the Wire loops l and@ shown in Figures l, 2, 3 and 4l, but, instead of having the inwardly-extending loops 6, it is provided with a yoke extending over a mantle-supporting Wire l2 that is held in sockets 13 carri-ed by a burner cone l1 in a usual manner.

This form of the invention is of great value in such mantles, as it provides a mantle head which may be producedbyautomatic tools very cheaply, and affords a support for a mantle that permits of the head of the mantle being fired toa high temperature during the forming of the mantle, so that the thorium and other chemicals contained in the mantle head may be fused and a strong mantle head produced.

Having thus described my invention, what I claim is: v

l. A AWire mantle' head includinghorizontal and inwaidly-extending loops for Vspacingsaid mantle head from the burner ito which it may be attached, said loops being` disposed in. substantially the same the body ofsaid mantle head.

2. A burner, including sockets disposed at the terminal part thereof, and a Wire mantle head having internal loops disposed in sub'- stantially the same plane as vthc'body of said mantle head and engaging said sockets.

3. A head for an incandescent mantle, said head having an elastic body portion containplane as ing alternating horizontal and downwardlyprojecting -Wire loops.

4f. A mantle headcomprising a wirehaving alternating horizontal anddownwardlyextending loops constituting a seat i around which the top of a mantle may vbe secured and having a suspension yokev at its upper end. f I n y 5. A mantle head comprising a wire having alternating horizontal and downwardly.-

extending loops constituting a grooved seat ,105

around which the secured.

6. A mantle head comprising a looped Wire topof a mantle may be constituting a seat around vwhich the'top of a mantle may be secured and having 1101i-,

zontalinternal meansfor spacing itfrom a burner. 'i Y l 7 A mantle head comprising a looped Wire constituting a seat around which the top of apmantle may be secured andhaving hori-3 zontal. internal loops for lspacing it from a burner.V Y 1f n 8.y A looped mantle head combined with an impregnated tubular mantle fabric having its unfolded upper Vend Surrou secured to said mantle head. v I I Y9. A mantle head having 'a bodypo'rtion including,vertically-arranged Wire loopsand means attached tov thefupper end of said mantle head by Whichitmay be suspended from a mantle-sustaining Wire. A v y i In testimony whereof I ailiX my signature.

. VALTER .ENGIL ndingrr and.r 

